{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21732", "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "state": "PUBLISHED", "assignerShortName": "imaginationtech", "dateReserved": "2026-01-05T11:57:27.257Z", "datePublished": "2026-03-20T22:48:42.695Z", "dateUpdated": "2026-03-20T22:48:42.695Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "shortName": "imaginationtech", "dateUpdated": "2026-03-20T22:48:42.695Z"}, "title": "GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-823", "description": "CWE-823: Use of Out-of-range Pointer Offset (4.16)", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-113", "descriptions": [{"lang": "en", "value": "CAPEC-113: Interface Manipulation (Version 3.9)"}]}], "affected": [{"vendor": "Imagination Technologies", "product": "Graphics DDK", "platforms": ["Linux", "Android"], "versions": [{"status": "unaffected", "version": "1.17 RTM", "versionType": "custom"}, {"status": "unaffected", "version": "1.18 RTM", "versionType": "custom"}, {"status": "affected", "version": "23.2 RTM", "versionType": "custom"}, {"status": "affected", "version": "24.1 RTM", "lessThanOrEqual": "25.1 RTM", "versionType": "custom"}, {"status": "unaffected", "version": "25.2 RTM", "versionType": "custom"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device.\n\n\n\nAn edge case using a very large value in switch statements in GPU shader code can cause a segmentation fault in the GPU shader compiler due to an out-of-bounds write access.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device.\n<br>\n<br>An edge case using a very large value in switch statements in GPU shader code can cause a segmentation fault in the GPU shader compiler due to an out-of-bounds write access."}]}], "references": [{"url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device.\n\n\n\nAn edge case using a very large value in switch statements in GPU shader code can cause a segmentation fault in the GPU shader compiler due to an out-of-bounds write access."}], "id": "CVE-2026-21732", "lastModified": "2026-03-20T23:16:42.480", "metrics": {}, "published": "2026-03-20T23:16:42.480", "references": [{"source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}], "sourceIdentifier": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-823"}], "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "type": "Secondary"}]}

{}

{}